Yes! You can use the Mobile App to lock your SNOO on a motion level of your choosing.
When SNOO is running at the motion level in which you’d like it to stay, press and hold the “Play” button for 3-5 seconds until you see the “Pause” symbol appear. This indicates that you’ve successfully locked in the motion level. Release the button. SNOO is now paused on that particular level. SNOO can be paused on all levels except levels 3 and 4. Your SNOO will stay on this level until you adjust the levels up or down with the App or by pressing the activity button on SNOO.
Note: SNOO will not respond to your babies cry while "locked" on the selected level. However, the white noise will level up in volume but motion will not level up.